Variables | Positive samples | Negative samples | Total | |
---|---|---|---|---|
Age(a) | A. 20 ≤ a < 30 | 17(28.3%) | 15(25.0%) | 32(53.3%) |
B. 30 ≤ a < 40 | 6(10.0%) | 18(30.0%) | 24(40.0%) | |
C. 40 ≤ a | 3(5.0%) | 1(1.7%) | 4(6.7%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Sex | Male | 13(21.7%) | 16(26.7%) | 29(48.3%) |
Female | 13(21.7%) | 18(30.0%) | 31(51.7%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Contact degree with ultrasonic scaling | A. Operator | 13(21.7%) | 12(20.0%) | 25(41.7%) |
B. Anesthesiologist | 10(16.7%) | 14(23.3%) | 24(40.0%) | |
C. General practioners | 3(5.0%) | 8(13.3%) | 11(18.3%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Contact frequency with ultrasonic scaling | A. ≤ 3 operations / week | 15(25.0%) | 23(38.3%) | 38(63.3%) |
B. >3 operations / week | 11(18.3%) | 11(18.3%) | 22(36.7%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Working years(w) | A. 0 < w < 5 | 15(25.0%) | 17(28.3%) | 32(53.3%) |
B. 5 ≤ w < 10 | 8(13.3%) | 12(20.0%) | 20(33.3%) | |
C. 10 ≤ w | 3(5.0%) | 5(8.3%) | 8(13.3%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Keeping pet | Positive | 17(28.3%) | 20(33.3%) | 37(61.7%) |
Negative | 9(15.0%) | 14(23.3%) | 23(38.3%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Close contact with pets | Positive | 16(26.7%) | 16(26.7%) | 32(53.3%) |
Negative | 10(16.7%) | 18(30.0%) | 28(46.7%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Smoking | Positive | 5(8.3%) | 3(5.0%) | 8(13.3%) |
Negative | 21(35.0%) | 31(51.7%) | 52(86.7%) | |
Total | 26(43.3%) | 34(56.7%) | 60 | |
Oral health | Healthy | 8(13.3%) | 14(23.3%) | 22(36.7%) |
Unhealthy | 18(30.0%) | 20(33.3%) | 38(63.3%) | |
Total | 26(43.3%) | 34(56.7%) | 60 |